Linoleic Acid

Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.
Related to Linoleic Acid: linolenic acid, Conjugated linoleic acid

linoleic acid

[¦lin·e¦lē·ik ′as·əd]
C17H31COOH A yellow unsaturated fatty acid, boiling at 229°C (14 mmHg), occurring as a glyceride in drying oils; obtained from linseed, safflower, and tall oils; a principal fatty acid in plants, and considered essential in animal nutrition; used in medicine, feeds, paints, and margarine. Also known as linolic acid; 9,12-octadecadienoic acid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Linoleic Acid


a monobasic carboxylic acid with two isolated double bonds, CH3(CH2)3 (CH2CH=CH)2(CH2)7COOH; a colorless oily liquid. Melting point, — 11°C; boiling point, 182°C (at 532 newtons per sq m, or 4 mm of mercury); density, 0.903 g/cm3 at 20°C.

Together with arachidonic acid and linolenic acid, linoleic acid is an irreplaceable fatty acid, necessary for normal vital activity. These acids are ingested by humans and animals with food, mainly in the form of complex lipids (triglycerides and phosphatides). A substantial quantity of linoleic acid in triglyceride form (up to 40–60 percent) is known to occur in many vegetable oils and animal fats, such as soy, cottonseed, sunflower, linseed, and hemp oils and whale blubber.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The goal is to elucidate a mechanism by which oxidized linoleic acid modulates TG and hepatic lipoproteins metabolism.
In addition, the percentage of linoleic acid was negatively correlated with visceral fat area in our study.
For now, grapeseed oil remains an excellent source of linoleic acid, which constitutes about 80% of its fatty acids.
Volatile profiles and lipid oxidation of irradiated raw chicken meat patties from laying hens fed with diets containing conjugated linoleic acid. Meat Sci., 56: 387-395.
Evidence in the formation of Conjugated Linoleic Acids from thermally induced 9t12t linoleic acid: A study by gas chromatography and infrared spectroscopy.
Inflammation and conjugated linoleic acid: mechanisms of action and implications for human health.
By substituting linoleic acid for saturated fat, the researchers may have delivered their subjects up to 25% of total dietary fat in the form of linoleic acid, and that's too high.
Evidence for potential mechanisms for the effect of conjugated linoleic acid on tumor metabolism and immune function: lessons from n-3 fatty acids.
Further walnut possess high PUFA/MUFA ratio 3.36 due to higher linoleic acid and lower oleic acid, however almond having opposite trend, comparable results (1.92-3.97) and (2.22-4.54) were reported by Cemile et al., [32].
The research showed that eating a diet with three times the recommended daily intake of linoleic acid might be harmful in pregnancy.
Crisps contain an omega-6 fat, linoleic acid, which was thought to have health benefits.